well, i lost my jailbreak exactly right after 6.1.3 came out because all my apps suddenly just disappeared i assumed saving my blobs would work but that was out of the question. i paid for 3 items that i absolutely love and now im stuck with this thing until sept or something.
regardless, Apple closed a hole that evaders were able to exploit. if they cant get past it and and release a beta iOS7, then by all means let them work on iOS7. 2-3 more months unitl they make some sort of accouncement, and release iOS7 to the devs so.
i voted for 6.1.3, i know and understand the fact i probably wont have this phone jailbroken again (due to probably getting the 5s) but if they were to attempt to see if it can be done then well that would be nice : /